Potter, N., & Christy, F. T. (1962). Trends in natural resource commodities: Statistics of prices, output, consumption, foreign trade, and employment in the United States, 1870-1957. Hopkins.
Chicago-Zitierstil (17. Ausg.)Potter, Neal, und Francis T. Christy. Trends in Natural Resource Commodities: Statistics of Prices, Output, Consumption, Foreign Trade, and Employment in the United States, 1870-1957. Baltimore: Hopkins, 1962.
MLA-Zitierstil (9. Ausg.)Potter, Neal, und Francis T. Christy. Trends in Natural Resource Commodities: Statistics of Prices, Output, Consumption, Foreign Trade, and Employment in the United States, 1870-1957. Hopkins, 1962.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.